Sources

Last updated 2026-10-09

Everything on our lists starts with someone else's hard work. These are the teams whose public research we read every day. If you find their reports useful, follow them directly: they go into far more depth than a block list can.

How we use their work

Publishers: if you'd like us to credit your work differently, or to stop using your feed, email hello@watchmanhq.com and we'll do it.

Threat research teams

SourceWho they are
The DFIR ReportDetailed write-ups of real intrusions, step by step
Cisco TalosCisco's threat intelligence and research group
Unit 42Palo Alto Networks' threat research team
SecurelistKaspersky's research and analysis team
SentinelLabsSentinelOne's research team
Check Point ResearchCheck Point's threat research team
VolexityIncident response and memory forensics specialists
Google Threat Intelligence / MandiantGoogle Cloud's threat intelligence team, including Mandiant
Microsoft Threat IntelligenceMicrosoft's threat intelligence team
Proofpoint Threat InsightEmail and social-engineering threat research
Sophos Threat ResearchSophos X-Ops research
Elastic Security LabsElastic's security research team
Fortinet Threat ResearchFortiGuard Labs research
Zscaler ThreatLabzZscaler's research team
ESET WeLiveSecurityESET's research blog
SekoiaSekoia's threat detection and research team
Group-IBGroup-IB's threat intelligence research
HuntressResearch from a security company that focuses on small and mid-sized organizations
ANY.RUNMalware analysis from an interactive sandbox
Red CanaryDetection and response research
Malwarebytes LabsMalwarebytes' research and consumer advice
Rapid7Rapid7's research team
Recorded Future Insikt GroupRecorded Future's research group
Infoblox Threat IntelDNS-focused threat research
Silent PushResearch into attacker infrastructure
ReversingLabsMalware and software supply chain research
CensysResearch from internet-wide scanning
DarktraceDarktrace's threat research
Arctic WolfArctic Wolf Labs research
Bitdefender LabsBitdefender's research
CybleCyble's research team
SeqriteSeqrite Labs, Quick Heal's enterprise research team
Lab52S2 Grupo's threat intelligence team
K7 LabsK7 Computing's research team
NVISO LabsNVISO's research blog
SocketSecurity research on open-source packages

Mac and Apple threats

SourceWho they are
Objective-SeeNon-profit Mac security research and free tools
Jamf Threat LabsApple-platform threat research

Government and community

SourceWho they are
CISA Cybersecurity AdvisoriesThe US Cybersecurity and Infrastructure Security Agency
SANS Internet Storm CenterDaily diaries from SANS's volunteer incident handlers

Security journalism

These usually report other teams' findings and link to them. When they do, the indicator counts with the original report, not as a second confirmation.

SourceWho they are
KrebsOnSecurityInvestigative security journalism
BleepingComputerSecurity and technology news